# Easy to Miss

#### Harry_the_cat

##### Elite Member
View attachment 34097
I have used a calculator for this and got 192. Question how do I find these without a calculator is there a method that anyone knows?
$tan(30°) = \frac{ \sqrt{3}}{2}$0
$tan(60^{\circ}) = \sqrt{3}$$12 × \frac{\sqrt{3}}{2} +2 × \sqrt{3} = 8\sqrt{3}$
I think everyone missed it, but I think, on your first line of working, you mean $$\displaystyle cos 30^o=\frac{\sqrt{3}}{2}$$

#### Cubist

##### Senior Member
I think everyone missed it, but I think, on your first line of working, you mean $$\displaystyle cos 30^o=\frac{\sqrt{3}}{2}$$
I certainly missed it I was probably suffering from radiation sickness at the time

@The Highlander also said this in post#5. Well spotted to both.

#### The Highlander

##### Full Member
I think everyone missed it, but I think, on your first line of working, you mean $$\displaystyle cos 30^o=\frac{\sqrt{3}}{2}$$
Not "everyone"! (See 2nd paragraph of post #5.)
.

#### Subhotosh Khan

##### Super Moderator
Staff member
I was probably suffering from radiation sickness at the time
I think that one is one of those bad polonium joke from you......

#### Cubist

##### Senior Member
I think that one is one of those bad polonium joke from you......
Yes, it was a joke, admittedly pretty bad I'll whistle and inconspicuously walk away before I get sent to the corner

#### Harry_the_cat

##### Elite Member
Not "everyone"! (See 2nd paragraph of post #5.)